Air duct component, air duct assembly, cabinet air conditioner and air outlet control method of cabinet air conditioner

Abstract

The present invention provides an air duct component, an air duct assembly, a cabinet air conditioner and an air outlet control method for the cabinet air conditioner, which belong to the field of air conditioners. The air duct component includes: an upper air duct, a fan air duct and a lower air duct arranged in sequence from top to bottom, the upper air duct is formed with an upper air duct opening at the top and connected to the fan air duct at the bottom, an upper return air duct is provided on the air duct wall of the upper air duct, a lower air duct opening is formed at the bottom of the lower air duct and connected to the fan air duct at the top, and a lower return air duct is provided on the air duct wall of the lower air duct. An upper flow path control mechanism is provided in the upper air duct, and a lower flow path control mechanism is provided in the lower air duct. Through the upper flow path control mechanism and the lower flow path control mechanism, the cabinet air conditioner can form a constricted structure in the upper air duct when the upper air outlet is single, and the air flow backflow is curbed when the air conditioner has a single upper air outlet. It can also form a constricted structure in the lower air duct when the cabinet air conditioner has a single lower air outlet, and the air flow backflow is curbed when the air conditioner has a single lower air outlet, and the surging noise when the air conditioner has a single lower air outlet is eliminated.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to an air duct component, an air duct assembly, a cabinet air conditioner and an air outlet control method of the cabinet air conditioner. Background Art

[0002] Reversible air supply air conditioners have three air outlet modes: up and down air outlet, single up air outlet, and single down air outlet. When the air conditioner is running in single up or single down air outlet mode, the air outlet will be uneven due to the change in the air duct line, resulting in surging sound, which is abnormal noise with poor sound quality and is easy to cause user complaints. If the noise is reduced by lowering the windshield, the cooling and heating capacity of the air conditioner will decrease, the comfort will be reduced, and the user experience will be affected. Summary of the invention

[0003] In order to overcome the problem of high noise when the cabinet air conditioner in the related art operates in a single upper or single lower air outlet mode, an embodiment of the present invention proposes an air duct component, an air duct assembly, a cabinet air conditioner and an air outlet control method for the cabinet air conditioner, which sets an upper flow path control mechanism and a lower flow path control mechanism in the air duct component. On the one hand, the upper flow path control mechanism 1 in the upper flow path control mechanism and the lower flow path control mechanism 1 in the lower flow path control mechanism can realize a single upper air supply mode, a single lower air supply mode and a simultaneous upper and lower air supply mode of the cabinet air conditioner. On the other hand, the upper flow path control mechanism 2 in the upper flow path control mechanism and the lower flow path control mechanism 2 in the lower flow path control mechanism can realize The cabinet air conditioner can form a constricted structure in the upper air duct when the air conditioner has only an upper air outlet, thereby preventing the air flow backflow when the air conditioner has only an upper air outlet, reducing the mutual impact of airflows, improving the air flow field in the air duct, and eliminating the surging noise when the air conditioner has only an upper air outlet. At the same time, through the upper flow path control mechanism 2 in the upper flow path control mechanism and the lower flow path control mechanism 2 in the lower flow path control mechanism, the cabinet air conditioner can also form a constricted structure in the lower air duct when the air conditioner has only a lower air outlet, thereby preventing the air flow backflow when the air conditioner has only a lower air outlet, reducing the mutual impact of airflows, improving the air flow field in the air duct, and eliminating the surging noise when the air conditioner has only a lower air outlet, thereby solving the problem of high noise when the cabinet air conditioner has only an upper air outlet or a lower air outlet.

[0004] A first aspect of an embodiment of the present invention provides an air duct component, which is applied to a cabinet air conditioner. The air duct component includes:

[0005] An upper air duct, a fan air duct and a lower air duct are sequentially arranged up and down, an upper air duct opening is formed at the top of the upper air duct, and the bottom is connected to the fan air duct, an upper return air duct is arranged on the air duct wall of the upper air duct, a lower air duct opening is formed at the bottom of the lower air duct, and the top is connected to the fan air duct, and a lower return air duct is arranged on the air duct wall of the lower air duct;

[0006] An upper flow path control mechanism, the upper flow path control mechanism comprises an upper flow path control mechanism 1 and an upper flow path control mechanism 2, the upper flow path control mechanism 1 is arranged at the upper return air outlet position, and is used to open or close the upper return air outlet, the upper flow path control mechanism 1 shuts off the connection between the upper air duct and the fan air duct while opening the upper return air outlet, and connects the upper air duct and the fan air duct while closing the upper return air outlet, the upper flow path control mechanism 2 is arranged on the upper air duct wall, the upper flow path control mechanism 2 has a first upper control position and a second upper control position, if the upper flow path control mechanism 2 is in the first upper control position, at least part of the upper flow path control mechanism 2 constitutes the air duct surface of the upper air duct, if the upper flow path control mechanism 2 is in the second upper control position, at least part of the upper flow path control mechanism 2 protrudes from the air duct surface of the upper air duct, so as to define at least part of the upper air duct as an upper tapered air duct section which is tapered from one side of the fan air duct to one side of the upper air duct outlet;

[0007] A downflow path control mechanism, the downflow path control mechanism includes a downflow path control mechanism 1 and a downflow path control mechanism 2, the downflow path control mechanism 1 is arranged at the lower return air outlet position, and is used to open or close the lower return air outlet, the downflow path control mechanism 1 cuts off the connection between the downwind duct and the fan duct while opening the lower return air outlet, and connects the downwind duct and the fan duct while closing the lower return air outlet, the downflow path control mechanism 2 is arranged on the downwind duct wall, the downflow path control mechanism 2 has a first lower control position and a second lower control position, if the downflow path control mechanism 2 is in the first lower control position, then at least part of the downflow path control mechanism 2 constitutes the duct surface of the downwind duct, if the downflow path control mechanism 2 is in the second lower control position, then at least part of the downflow path control mechanism 2 protrudes from the duct surface of the downwind duct, so as to define at least part of the downwind duct as a lower tapering duct section which is tapered from one side of the fan duct to the side of the downwind duct outlet.

[0008] In the above technical solution, two groups of upper flow path control mechanisms are symmetrically arranged. When the two groups of symmetrically arranged upper flow path control mechanisms both protrude from the air duct surface of the upper air duct, an upper tapered air duct section is defined between the two groups of upper flow path control mechanisms in a tapered form from one side of the fan air duct to one side of the upper air duct opening;

[0009] There are two groups of downflow path control mechanisms 2 symmetrically arranged. When the two groups of symmetrically arranged downflow path control mechanisms 2 both protrude from the air duct surface of the downwind duct, a lower tapering air duct section is defined between the two groups of downflow path control mechanisms 2, which is in a tapering form from one side of the fan air duct to the side of the downwind duct outlet.

[0010] In the above technical solution, one of the two sets of upper flow path control mechanisms is arranged on the same side as the upper return air outlet;

[0011] One of the two sets of lower flow path control mechanisms is arranged on the same side as the lower return air outlet.

[0012] In the above technical solution, an upper channel opening is provided on the air duct wall of the upper air duct, and the second upper flow path control mechanism includes an upper movable member movably arranged at the upper channel opening, and the upper movable member has a first upper control position and a second upper control position for sealing the upper channel opening when moving, and if the upper movable member is in the first upper control position, at least part of the upper movable member constitutes the air duct surface of the upper air duct, and if the upper movable member is in the second upper control position, at least part of the upper movable member protrudes from the air duct surface of the upper air duct;

[0013] A lower channel opening is provided on the air duct wall of the lower air duct, and the second lower flow path control mechanism includes a lower movable part movably arranged at the lower channel opening, and the lower movable part has a first lower control position and a second lower control position for sealing the lower channel opening when moving. If the lower movable part is in the first lower control position, at least part of the lower movable part constitutes the air duct surface of the lower air duct, and if the lower movable part is in the second lower control position, at least part of the lower movable part protrudes from the air duct surface of the lower air duct.

[0014] In the above technical solution, the upper movable member and the lower movable member are constructed as the same structure, wherein:

[0015] The upper movable member includes an upper partition and an upper boss, the upper partition is fixed at the position of the upper channel opening and an upper partition hole is opened on the upper partition, the upper boss is rotatably arranged at the position of the upper partition hole and has an upper boss surface facing the inner side of the upper air duct, and the upper boss has a first upper control position and a second upper control position for sealing the upper partition hole when rotating, if the upper boss is in the first upper control position, the upper boss surface of the upper boss constitutes the air duct surface of the upper air duct, if the upper boss is in the second upper control position, the upper boss surface of the upper boss protrudes from the air duct surface of the upper air duct;

[0016] The lower movable part includes a lower partition and a lower boss. The lower partition is fixed at the position of the lower channel opening and a lower partition hole is opened on the lower partition. The lower boss is rotatably set at the position of the lower partition hole and has a lower boss surface facing the inner side of the lower air duct. When the lower boss rotates, it has a first lower control position and a second lower control position for sealing the lower partition hole. If the lower boss is in the first lower control position, the lower boss surface of the lower boss constitutes the air duct surface of the lower air duct. If the lower boss is in the second lower control position, the lower boss surface of the lower boss protrudes from the air duct surface of the lower air duct.

[0017] In the above technical solution, the upper channel opening is arranged between the upper return air opening and the upper air duct opening, and the lower channel opening is arranged between the lower return air opening and the lower air duct opening;

[0018] The upper boss includes an upper boss bottom close to the bottom of the upper channel opening and an upper boss top close to the top of the upper channel opening, the upper boss is arranged in a tapered shape from one side of the upper boss top to one side of the upper boss bottom, and the upper boss bottom is rotatably arranged at the bottom of the upper channel opening;

[0019] The lower boss includes a lower boss bottom close to the bottom of the lower channel opening and a lower boss top close to the top of the lower channel opening. The lower boss is gradually expanded from one side of the lower boss top to one side of the lower boss bottom, and the upper boss top is rotatably set on the top of the lower channel.

[0020] In the above technical solution, the upper movable member further comprises an upper limit plate, which is fixedly arranged on a side of the upper boss away from the upper boss surface, wherein when the upper boss moves to a second upper control position where the upper boss surface protrudes from the upper air duct surface, the upper limit plate abuts against the outer wall of the upper air duct;

[0021] The lower movable part also includes a lower limit plate, which is fixedly arranged on a side of the lower boss away from the lower boss surface. When the lower boss moves to a second lower control position where the lower boss surface protrudes from the lower air duct surface, the lower limit plate abuts against the outer wall of the lower air duct.

[0022] A second aspect of an embodiment of the present invention provides an air duct assembly, comprising a centrifugal fan and the above-mentioned air duct component, wherein the centrifugal fan is arranged in a fan air duct of the air duct component;

[0023] The axial air inlet side of the centrifugal fan is connected to the axial air inlet side of the fan air duct, and the two radial air outlet sides of the centrifugal fan are connected to the bottom of the upper air duct and the top of the lower air duct respectively.

[0024] A third aspect of an embodiment of the present invention provides a cabinet air conditioner, comprising a casing and the above-mentioned air duct assembly;

[0025] An upper air outlet is provided on the top of the casing, a lower air outlet is provided on the bottom, and an air duct assembly is provided inside. The upper air duct outlet on the top of the air duct assembly is connected to the upper air outlet, and the lower air duct outlet on the bottom of the air duct assembly is connected to the lower air outlet. A fuselage shell channel is defined between the air duct assembly and the casing.

[0026] In the above technical solution, an upper air inlet is also provided at the top of the casing, and a lower air inlet is also provided at the bottom of the casing;

[0027] The upper air inlet and the lower air inlet are both connected to the fuselage shell channel.

[0028] A fourth aspect of an embodiment of the present invention provides an air outlet control method for a cabinet air conditioner, and the control method is applied to the above cabinet air conditioner;

[0029] The air conditioner has a simultaneous upper and lower air outlet mode in which air is discharged from the upper and lower air outlets at the same time, a single lower air outlet mode in which air is inletted from the upper air outlet and air is discharged from the lower air outlet, and a single upper air outlet mode in which air is inletted from the lower air outlet and air is discharged from the upper air outlet;

[0030] Control methods include:

[0031] If the air conditioner performs the upper and lower air outlet mode, the upper flow path control mechanism 1 is made to close the upper return air outlet, and the upper flow path control mechanism 2 is made to be in the first upper control position, and the lower flow path control mechanism 2 is made to close the lower return air outlet, and the lower flow path control mechanism 2 is made to be in the first lower control position;

[0032] If the air conditioner performs the single down-air outlet mode, the upper flow path control mechanism 1 opens the upper return air outlet, the upper flow path control mechanism 2 is in the first upper control position, the lower flow path control mechanism 1 closes the lower return air outlet, and the lower flow path control mechanism 2 is in the second lower control position;

[0033] If the air conditioner executes the single upper air outlet mode, the upper flow path control mechanism 1 closes the upper return air outlet, and the upper flow path control mechanism 2 is in the second upper control position, and the lower flow path control mechanism 1 opens the lower return air outlet, and the lower flow path control mechanism 2 is in the first lower control position.

[0034] In the above technical solution, the control method further includes:

[0035] If the air conditioner performs the single upper air outlet mode or the single lower air outlet mode, the speed of the centrifugal fan is controlled to increase.

[0036] In the above technical solution, the operation mode of the air conditioner includes a cooling mode and a heating mode;

[0037] The control method also includes:

[0038] In cooling mode, the indoor ambient temperature is obtained. If the indoor ambient temperature is higher than the first preset temperature, the upper and lower air outlet mode is executed simultaneously. If the indoor ambient temperature is lower than or equal to the first preset temperature, the upper air outlet mode is executed alone.

[0039] In the heating mode, the indoor ambient temperature is obtained. If the indoor ambient temperature is lower than the second preset temperature, the upper and lower air outlet mode is executed. If the indoor ambient temperature is greater than or equal to the second preset temperature, the lower air outlet mode is executed.

[0040] A fifth aspect of the embodiments of the present invention further provides an air duct component, the air duct component comprising an air duct housing and a flow path control body;

[0041] The interior of the air duct housing forms an air duct, and an opening is provided on the wall of the air duct housing to connect the air duct with the outside of the air duct;

[0042] The flow path control body is rotatably arranged at the opening;

[0043] The flow path control body has a first wall surface facing the inside of the air duct, a second wall surface facing the outside of the air duct, and a third wall surface connected between the first wall surface and the second wall surface for sealing with the edge of the opening;

[0044] The flow path control body can be controlled to rotate according to the flow direction of the fluid inside the air duct;

[0045] The flow path control body has a first working position and a second working position;

[0046] When the flow path control body is controlled to rotate to the first working position toward the inside of the air duct, the first wall surface forms a gradually contracting air duct section on the air duct portion where it is located;

[0047] When the flow path control body is controlled to rotate to the second working position toward the outside of the air duct, the first wall surface is connected with the inner wall surface of the air duct housing wall to form a smooth air duct wall surface, and the third wall surface is turned out of the air duct through the opening;

[0048] When the flow path control body rotates between the first working position and the second working position, the third wall surface always maintains a sealing fit with the edge of the opening.

[0049] In the above technical solution, the air duct inside the air duct housing can be controlled to form a reversible air supply duct;

[0050] The air duct component includes an upper air duct opening and a lower air duct opening, and the reversible air supply duct includes a single lower air supply duct with air inlet at the upper air duct opening and air outlet at the lower air duct opening, and a single upper air supply duct with air inlet at the lower air duct opening and air outlet at the upper air duct opening.

[0051] A sixth aspect of the embodiment of the present invention further provides a cabinet air conditioner, which includes the air duct component provided in the fifth aspect of the embodiment, wherein the air duct component is arranged inside the air conditioner and defines a body housing channel between the air conditioner casing;

[0052] An upper air vent is provided on the top of the air conditioner casing, and a lower air vent is provided on the bottom of the air conditioner casing. The upper air vent of the air duct component is connected to the upper air vent, and the lower air vent is connected to the lower air vent.

[0053] The interior of the air duct component can be controlled to form a single lower air supply duct with the air inlet side connected to the fuselage shell channel and the upper air duct opening, and the air outlet side connected to the lower air duct opening. The interior of the air duct component can also be controlled to form a single upper air supply duct with the air inlet side connected to the fuselage shell channel and the lower air duct opening, and the air outlet side connected to the upper air duct opening.

[0054] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0055] In the embodiment of the present invention, an upper flow path control mechanism and a lower flow path control mechanism are arranged in the air duct component. On the one hand, the upper flow path control mechanism 1 in the upper flow path control mechanism and the lower flow path control mechanism 1 in the lower flow path control mechanism can realize the single upper air supply mode, the single lower air supply mode and the upper and lower simultaneous air supply mode of the cabinet air conditioner. On the other hand, the upper flow path control mechanism 2 in the upper flow path control mechanism and the lower flow path control mechanism 2 in the lower flow path control mechanism can realize that when the cabinet air conditioner only discharges air from the upper side, the upper air duct forms a constricted structure, thereby curbing the single upper air discharge of the air conditioner When the air is discharged from the lower part of the cabinet, the air conditioner can form a constricted structure in the lower air duct when the air is discharged from the lower part, thereby preventing the air from flowing back when the air conditioner is discharged from the lower part, reducing the mutual impact of the air flow, improving the air flow field in the air duct, and eliminating the surging noise when the air is discharged from the lower part, thereby solving the problem of high noise when the air conditioner has only upper or lower air outlets. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0057] Figure 1 It is a schematic cross-sectional view of an embodiment of an air duct component of the present invention;

[0058] Figure 2 It is a schematic diagram of the top structure of the upper flow path control mechanism 2 in the embodiment of the air duct component of the present invention;

[0059] Figure 3 The side view of the structure of the upper flow path control mechanism 2 in the embodiment of the air duct component of the present invention is shown in FIG. Figure 1 , the upper flow path control mechanism 2 in the figure is in the first upper control position;

[0060] Figure 4 The side view of the structure of the upper flow path control mechanism 2 in the embodiment of the air duct component of the present invention is shown in FIG. Figure 2 , the upper flow path control mechanism 2 in the figure is in the second upper control position;

[0061] Figure 5 It is a cross-sectional structural schematic diagram of an embodiment of an air duct assembly of the present invention;

[0062] Figure 6 It is a cross-sectional structural schematic diagram of the cabinet air conditioner in the embodiment of the cabinet air conditioner of the present invention when performing upper and lower air discharge simultaneously;

[0063] Figure 7It is a cross-sectional structural schematic diagram of the cabinet air conditioner in the embodiment of the cabinet air conditioner of the present invention when performing single upper air outlet;

[0064] Figure 8 It is a cross-sectional structural schematic diagram of the cabinet air conditioner in the embodiment of the cabinet air conditioner of the present invention when performing single downward air outlet;

[0065] Fig. 9 It is a comparison diagram of airflow distribution in the air duct of the existing air conditioner and the air conditioner in the embodiment of the present invention when the air is discharged from the upper or lower side only.

[0066] Among them: 1-upper air duct; 11-upper air duct opening; 12-upper return air outlet; 2-fan air duct; 3-downward air duct; 31-downward air duct opening; 32-downward return air outlet; 4-upper flow path control mechanism 1; 5-upper flow path control mechanism 2; 51-upper partition; 52-upper boss; 521-upper boss surface; 53-limiting plate; 6-downward flow path control mechanism 1; 7-downward flow path control mechanism 2; 8-centrifugal fan; 9-casing; 91-upper air outlet; 92-down air outlet; 93-upper air inlet; 94-lower air inlet; 100-body shell channel. DETAILED DESCRIPTION

[0067] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are merely examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

[0068] At present, the existing cabinet air conditioners have a single upper or single lower air outlet mode, which causes a lot of noise when operating. The embodiment of the present invention proposes an air duct component, an air duct assembly, a cabinet air conditioner and an air outlet control method for the cabinet air conditioner, which sets an upper flow path control mechanism and a lower flow path control mechanism in the air duct component. On the one hand, the upper flow path control mechanism 1 in the upper flow path control mechanism and the lower flow path control mechanism 1 in the lower flow path control mechanism can realize the single upper air supply mode, the single lower air supply mode and the upper and lower simultaneous air supply mode of the cabinet air conditioner. On the other hand, the upper flow path control mechanism 2 in the upper flow path control mechanism and the lower flow path control mechanism 2 in the lower flow path control mechanism can realize the cabinet air conditioner to form an upper air duct when the upper air outlet is single. A constricted structure can prevent air flow backflow when the air conditioner has only one upper air outlet, reduce the mutual impact of air flow, improve the air flow field in the air duct, and eliminate the surging noise when the air is discharged from the upper part. At the same time, through the upper flow path control mechanism 2 in the upper flow path control mechanism and the lower flow path control mechanism 2 in the lower flow path control mechanism, the cabinet air conditioner can also form a constricted structure in the lower air duct when the air conditioner has only one lower air outlet, so as to prevent air flow backflow when the air conditioner has only one lower air outlet, reduce the mutual impact of air flow, improve the air flow field in the air duct, and eliminate the surging noise when the air is discharged from the lower part, thereby solving the problem of high noise when the cabinet air conditioner has only one upper air outlet or only one lower air outlet.

[0069] The following is combined with Figure 1 -Attached Fig. 9 The technical solution of this embodiment is elaborated in detail. In the absence of conflict, the following implementation methods and embodiments can be combined with each other.

[0070] Example

[0071] like Figure 1 As shown, in a first aspect of an embodiment of the present invention, an air duct component is provided, which is applied to a cabinet air conditioner. The air duct component includes:

[0072] An upper air duct 1, a fan air duct 2 and a lower air duct 3 are sequentially arranged up and down, an upper air duct opening 11 is formed at the top of the upper air duct, and the bottom is connected to the fan air duct 2, an upper return air duct 12 is provided on the air duct wall of the upper air duct 1, a lower air duct opening 31 is formed at the bottom of the lower air duct 3, and the top is connected to the fan air duct 2, and a lower return air duct 32 is provided on the air duct wall of the lower air duct 3;

[0073] An upper flow path control mechanism, the upper flow path control mechanism includes an upper flow path control mechanism 1 4 and an upper flow path control mechanism 2 5. The upper flow path control mechanism 1 4 is arranged at the position of the upper return air outlet 12, and is used to open or close the upper return air outlet 12. The upper flow path control mechanism 1 4 cuts off the connection between the upper air duct 1 and the fan air duct 2 while opening the upper return air outlet 12, and connects the upper air duct 1 and the fan air duct 2 while closing the upper return air outlet 12. The upper flow path control mechanism 2 5 is arranged on the upper air duct wall. The upper flow path control mechanism 2 5 has a first upper control position and a second upper control position. If the upper flow path control mechanism 2 5 is in the first upper control position, at least part of the upper flow path control mechanism 2 5 constitutes the air duct surface of the upper air duct 1. If the upper flow path control mechanism 2 is in the second upper control position, at least part of the upper flow path control mechanism 2 protrudes from the air duct surface of the upper air duct 1, so as to define at least part of the upper air duct 1 as an upper tapered air duct section that is tapered from the fan air duct 2 side to the upper air duct outlet 11 side;

[0074] The downflow path control mechanism includes a downflow path control mechanism 1 6 and a downflow path control mechanism 2 7. The downflow path control mechanism 1 6 is arranged at the position of the lower return air outlet 32, and is used to open or close the lower return air outlet 32. The downflow path control mechanism 1 6 cuts off the connection between the downwind duct 3 and the fan duct 2 while opening the lower return air outlet 32, and connects the downwind duct 3 and the fan duct 2 while closing the lower return air outlet 32. The downflow path control mechanism 2 7 is arranged on the downwind duct wall. The downflow path control mechanism 2 7 has a first lower control position and a second lower control position. If the downflow path control mechanism 2 7 is in the first lower control position, at least part of the downflow path control mechanism 2 7 constitutes the duct surface of the downwind duct 3. If the downflow path control mechanism 2 7 is in the second lower control position, at least part of the downflow path control mechanism 2 7 protrudes from the duct surface of the downwind duct 3, so as to define at least part of the downwind duct 3 as a lower tapering duct section that is tapered from the side of the fan duct 2 to the side of the downwind duct outlet 31.

[0075] Specifically, the above-mentioned air duct component is combined into a cabinet air conditioner for description.

[0076] like Figure 6-Figure 8 As shown, Figure 6-Figure 8 The schematic diagram shows the structure of the air duct component when it is installed in the air conditioner. Figure 6 The schematic diagram shows the structure of the air conditioner when the air is discharged from both the upper and lower parts. Figure 7 The schematic diagram of the structure of the air conditioner when the air is discharged from the upper part is shown. Figure 8 The schematic diagram shows the structure of the air conditioner when the air is discharged from the bottom only.

[0077] More specifically, Figure 6As shown, when the air conditioner executes the upper and lower simultaneous air outlet mode, the upper flow path control mechanism 1 4 is controlled to close the upper return air outlet 12, and the lower flow path control mechanism 1 6 is controlled to close the lower return air outlet 32. At the same time, the upper flow path control mechanism 2 5 is controlled to be in the first upper control position, and the lower flow path control mechanism 2 7 is controlled to be in the first lower control position. At this time, the upper air duct 1 is connected to the upper air outlet 91 at the top of the air conditioner, and the lower air duct 3 is connected to the lower air outlet 92 at the bottom of the air conditioner. Therefore, when the centrifugal fan is running, the inhaled air flow can be transported to the room through the upper air outlet 91 and the lower air outlet 92 of the air conditioner, thereby realizing the upper and lower simultaneous air outlet of the air conditioner.

[0078] More specifically, Figure 7 As shown, when the air conditioner executes the single upper air outlet mode, the upper flow path control mechanism 14 is controlled to close the upper return air outlet 12, the lower flow path control mechanism 16 is controlled to open the lower return air outlet 32, and the upper flow path control mechanism 25 is controlled to be in the second upper control position, and the lower flow path control mechanism 27 is controlled to be in the first lower control position. At this time, the upper air duct 1 is only connected to the upper air outlet 91 at the top of the air conditioner and the fan air duct, and because the lower flow path control mechanism 16 closes the connection between the lower air duct 3 and the fan air duct 2 while opening the lower return air outlet 32, the lower air duct 3 is connected to the lower return air outlet 32 ​​at this time. When the fan of the air conditioner is running, at this time The airflow at the bottom of the air conditioner will enter the lower air duct 3 through the lower air outlet 92, and enter the fuselage shell channel 100 formed between the air duct component and the casing through the lower return air outlet 32, and enter the centrifugal fan after heat exchange in the heat exchanger, and under the action of the centrifugal fan, it will be discharged from the upper air outlet 91 on the top of the air conditioner through the upper air duct 1, thereby realizing a single upper air outlet mode of lower air intake and upper air outlet. Because in the single upper air outlet mode, the overall profile of the air duct will change, the pressure in the air duct is uneven when the air is discharged. When the pressure in the air duct is small, the external air pressure will press part of the air flow into the air duct, thereby generating an air flow reflux phenomenon {such as Fig. 9 The air conditioner in the present application can form a constricted structure in the upper air duct 1 by placing the upper flow control mechanism 2 5 in the upper air duct 1 in the second upper control position when operating the upper air outlet, thereby curbing the backflow of air, reducing the mutual impact of airflow, improving the airflow field in the air duct, and eliminating the surging noise {such as Fig. 9} in the right picture.

[0079] More specifically, Figure 8As shown, when the air conditioner executes the single down-air outlet mode, the upper flow path control mechanism 14 is controlled to open the upper return air outlet 12, and the lower flow path control mechanism 16 is controlled to close the lower return air outlet 32. At the same time, the upper flow path control mechanism 25 is controlled to be in the first upper control position, and the lower flow path control mechanism 27 is controlled to be in the second lower control position. At this time, the lower air duct 3 is only connected to the lower air outlet 92 at the bottom of the air conditioner and the fan air duct 2. Since the upper flow path control mechanism 14 closes the connection between the upper air duct 1 and the fan air duct 2 when opening the upper return air outlet 12, the upper air duct 1 is connected to the upper return air outlet 12 at this time. When the fan of the air conditioner is running, at this time The airflow at the top of the air conditioner will enter the upper air duct 1 through the upper air outlet 91, and enter the fuselage shell channel 100 formed between the air duct component and the casing through the upper return air outlet 12, and enter the centrifugal fan after heat exchange in the heat exchanger, and under the action of the centrifugal fan, it will be discharged from the lower air outlet 92 at the bottom of the air conditioner through the lower air duct 3, thereby realizing a single lower air outlet mode of upper air intake and lower air outlet. Because in the single lower air outlet mode, the overall profile of the air duct will change, the pressure in the air duct is uneven when the air is discharged. When the pressure in the air duct is small, the external air pressure will press part of the air flow into the air duct, thereby causing the air flow reflux phenomenon {such as Fig. 9 The air conditioner in the present application can form a constricted structure in the lower air duct 3 by placing the lower flow path control mechanism 27 in the lower air duct 3 in the second lower control position when operating with single lower air outlet, thereby curbing the air flow backflow, reducing the mutual impact of air flow, improving the air flow field in the air duct, and eliminating the surging noise {such as Fig. 9} in the right picture.

[0080] That is, in the embodiment of the present invention, an upper flow path control mechanism and a lower flow path control mechanism are arranged in the air duct component. On the one hand, the upper flow path control mechanism 14 in the upper flow path control mechanism and the lower flow path control mechanism 16 in the lower flow path control mechanism can realize the single upper air supply mode, the single lower air supply mode and the upper and lower simultaneous air supply mode of the cabinet air conditioner. On the other hand, the upper flow path control mechanism 25 in the upper flow path control mechanism and the lower flow path control mechanism 27 in the lower flow path control mechanism can realize that when the cabinet air conditioner is discharged from the upper side, the upper air duct 1 forms a constricted structure, thereby preventing the upper air flow of the air conditioner from being discharged from the upper side. When the air is discharged, the air flow refluxes, which reduces the mutual impact of the air flow, improves the air flow field in the air duct, and eliminates the surging noise when the air is discharged from the upper part only. At the same time, through the upper flow path control mechanism 2 5 in the upper flow path control mechanism and the lower flow path control mechanism 2 7 in the lower flow path control mechanism, the cabinet air conditioner can also form a constricted structure in the lower air duct 3 when the air is discharged from the lower part only, thereby curbing the air flow reflux when the air conditioner is discharged from the lower part only, reducing the mutual impact of the air flow, improving the air flow field in the air duct, and eliminating the surging noise when the air is discharged from the lower part only, thereby solving the problem of high noise when the cabinet air conditioner has only upper air outlet or only lower air outlet.

[0081] That is, the upper flow path control mechanism 2 5 and the lower flow path control mechanism 2 7 in the embodiment of the present invention act as a noise reduction device. By defining a tapered air duct inside the corresponding air duct, the problem of high noise generated by the air conditioner when the air is discharged from only the upper or lower direction can be effectively avoided.

[0082] It should be noted that when the above-mentioned upper flow path control mechanism 25 is in the first upper control position, and the lower flow path control mechanism 27 is in the first lower control position, the upper flow path control mechanism 25 and the lower flow path control mechanism 27 both constitute part of the air duct, and in this position they will not affect the airflow direction and airflow rate in the air duct.

[0083] It can be understood that when the cabinet air conditioner does not operate in the single upper or single lower air outlet mode, the upper flow path control mechanism 25 and the lower flow path control mechanism 27 can be hidden without affecting the normal flow of air in the air duct. When the air conditioner operates in the single upper or single lower air outlet mode, the upper flow path control mechanism 25 and the lower flow path control mechanism 27 can be controlled to process the air flow in the corresponding air duct to eliminate the problem of loud noise generated in the single upper or single lower air outlet mode.

[0084] It should also be noted that the upper flow path control mechanism 4 and the lower flow path control mechanism 6 mentioned in the embodiment of the present invention can preferably be in the form of a baffle. Specifically, when the upper flow path control mechanism 4 and the lower flow path control mechanism 6 are in the form of a baffle, they can be attached to the corresponding air duct wall when the corresponding return air outlet is closed, thereby not affecting the flow of airflow in the air duct.

[0085] In some embodiments, Figure 1 As shown, two groups of upper flow path control mechanisms 2 5 are symmetrically arranged. When the two groups of symmetrically arranged upper flow path control mechanisms 2 5 both protrude from the air duct surface of the upper air duct 1, an upper tapered air duct section in a tapered form from one side of the fan air duct 2 to one side of the upper air duct opening 11 is defined between the two groups of upper flow path control mechanisms 2 5;

[0086] There are two groups of symmetrically arranged downflow path control mechanisms 7. When the two symmetrically arranged groups of downflow path control mechanisms 7 both protrude from the air duct surface of the downwind duct 3, a lower tapering air duct section is defined between the two groups of downflow path control mechanisms 7, which is in a tapering form from one side of the fan air duct 2 to the side of the downwind duct opening 31.

[0087] By arranging the upper flow path control mechanism 2 5 and the lower flow path control mechanism 2 7 in two groups in a symmetrical manner, the tapering effect of the upper tapered air duct section and the tapering effect of the lower tapered air duct section can be improved, thereby improving the noise reduction effect of the air conditioner when only the upper air is discharged and the noise reduction effect of the air conditioner when only the lower air is discharged.

[0088] In some embodiments, Figure 1As shown, one of the two sets of upper flow path control mechanisms 5 is symmetrically arranged on the same side as the upper return air outlet 12;

[0089] At the same time, one of the two symmetrically arranged groups of lower flow path control mechanisms 7 is arranged on the same side as the lower return air outlet 32 ​​.

[0090] In the embodiment of the present invention, noise reduction devices {i.e., upper flow path control mechanism 2 and lower flow path control mechanism 2} are arranged at the return air outlet {including the upper return air outlet and the lower return air outlet} position of the air duct and the relative position of the return air outlet. This is because there is a backflow phenomenon on both the return air outlet side and the corresponding side of the return air outlet, which will form an airflow device. Therefore, it is necessary to arrange noise reduction devices on the return air outlet side and the corresponding side of the return air outlet to eliminate noise.

[0091] In some embodiments, an upper channel opening is provided on the air duct wall of the upper air duct 1, and the upper flow path control mechanism 2 5 includes an upper movable member movably arranged at the upper channel opening, and the upper movable member has a first upper control position and a second upper control position for sealing the upper channel opening when moving, and if the upper movable member is in the first upper control position, at least part of the upper movable member constitutes the air duct surface of the upper air duct, and if the upper movable member is in the second upper control position, at least part of the upper movable member protrudes from the air duct surface of the upper air duct;

[0092] A lower channel opening is provided on the air duct wall of the lower air duct 3, and the lower flow path control mechanism 2 7 includes a lower movable part movably arranged at the lower channel opening, and the lower movable part has a first lower control position and a second lower control position for sealing the lower channel opening when moving. If the lower movable part is in the first lower control position, at least part of the lower movable part constitutes the air duct surface of the lower air duct, and if the lower movable part is in the second lower control position, at least part of the lower movable part protrudes from the air duct surface of the lower air duct.

[0093] By arranging the upper flow path control mechanism 2 5 and the lower flow path control mechanism 2 7 as movable parts, it is convenient to control their positions on the one hand, and their production cost is correspondingly low on the other hand.

[0094] In some embodiments, the upper movable member and the lower movable member are constructed as the same structure, see Figure 2 and Figure 4 Since the two have the same structure, only the upper flow path control mechanism 2 5 is marked with a figure number in this article, while the lower flow path control mechanism 2 7 is not marked with a figure number:

[0095] Specific:

[0096] The upper movable member includes an upper partition plate 51 and an upper boss 52. The upper partition plate 51 is fixed at the position of the upper channel opening and an upper partition plate hole is opened on the upper partition plate 51. The upper boss 52 is rotatably arranged at the position of the upper partition plate hole and has an upper boss surface 521 facing the inner side of the upper air duct 1. The upper boss 52 has a first upper control position and a second upper control position for sealing the upper partition plate hole when rotating. If the upper boss 52 is in the first upper control position, the upper boss surface 521 of the upper boss 52 constitutes the air duct surface of the upper air duct. If the upper boss 52 is in the second upper control position, the upper boss surface 521 of the upper boss 52 protrudes from the air duct surface of the upper air duct 1.

[0097] The lower movable part includes a lower partition and a lower boss. The lower partition is fixed at the position of the lower channel opening and a lower partition hole is opened on the lower partition. The lower boss is rotatably set at the position of the lower partition hole and has a lower boss surface facing the inner side of the lower air duct. When the lower boss rotates, it has a first lower control position and a second lower control position for sealing the lower partition hole. If the lower boss is in the first lower control position, the lower boss surface of the lower boss constitutes the air duct surface of the lower air duct. If the lower boss is in the second lower control position, the lower boss surface of the lower boss protrudes from the air duct surface of the lower air duct.

[0098] That is, in the embodiment of the present invention, the upper flow path control mechanism 2 5 and the lower flow path control mechanism 2 7 are arranged in the form of a partition plus a boss. On the one hand, the partition is used to facilitate the installation of the movable part at the upper channel opening of the air duct, and on the other hand, the boss can facilitate the switching of the movable part at different positions, thereby realizing the noise reduction processing of the air conditioner in the single upper or single lower air outlet mode.

[0099] In some embodiments, Figure 1-Figure 4 As shown, the upper channel opening is arranged between the upper return air opening 12 and the upper air duct opening 11, and the lower channel opening is arranged between the lower return air opening 32 and the lower air duct opening 31;

[0100] The upper boss 52 includes an upper boss bottom portion close to the bottom portion of the upper channel opening and an upper boss top portion close to the top portion of the upper channel opening. The upper boss 52 is tapered from one side of the upper boss top portion to one side of the upper boss bottom portion, and the upper boss bottom portion is rotatably disposed at the bottom portion of the upper channel opening.

[0101] The lower boss includes a lower boss bottom close to the bottom of the lower channel opening and a lower boss top close to the top of the lower channel opening. The lower boss is gradually expanded from one side of the lower boss top to one side of the lower boss bottom, and the upper boss top is rotatably set on the top of the lower channel.

[0102] In the embodiment of the present invention, by setting the boss as a tapered structure, the material used for the moving parts can be reduced while ensuring the noise reduction effect, thereby reducing the production cost of the air conditioner. At the same time, by installing the narrow end of the boss as the rotating end at the channel opening, the rotating end of the boss can be prevented from directly contacting the flowing airflow, thereby making it easier to rotate the boss when it is necessary. Furthermore, by arranging the upper channel opening between the upper return air opening 12 and the upper air duct opening 11, the airflow entering the fuselage shell channel 100 from the upper return air opening can be prevented from being blocked by the upper boss. Correspondingly, by arranging the lower channel opening between the lower return air opening 32 and the lower air duct opening 31, the airflow entering the fuselage shell channel 100 from the lower return air opening can also be prevented from being blocked by the lower boss, thereby improving the air intake efficiency of the air conditioner under different air supply modes.

[0103] Specifically, Figure 2-Figure 4 As shown, a crankshaft is arranged at the rotating end of the boss, the boss and the crankshaft are one component, a shaft sleeve is arranged on the partition, the partition and the shaft sleeve constitute another component, and the two components are assembled into a noise reduction device, the crankshaft is installed in the shaft sleeve, the boss can rotate around the crankshaft, and can extend out through the hole opened in the middle of the partition.

[0104] In some embodiments, Figure 2-Figure 4 As shown, the upper movable member further includes an upper limit plate 53, which is fixedly arranged on a side of the upper boss 52 away from the upper boss surface 521, wherein when the upper boss 52 moves to the second upper control position where the upper boss surface 521 protrudes from the upper air duct surface, the upper limit plate 53 abuts against the outer wall of the upper air duct 1;

[0105] The lower movable part also includes a lower limit plate, which is fixedly arranged on a side of the lower boss away from the lower boss surface. When the lower boss moves to a second lower control position where the lower boss surface protrudes from the lower air duct surface, the lower limit plate abuts against the outer wall of the lower air duct.

[0106] Of course, in some alternative implementations, the limiting plate may also be provided on one side of the boss surface.

[0107] In the embodiment of the present invention, by arranging a limiting plate on the boss, the boss can be limited when the boss is in different positions.

[0108] It should be noted that the boss in the embodiment of the present invention can have its position controlled by a motor and can also be changed manually by a user. Therefore, by setting a limit plate, the user can effectively limit the boss when manually changing the position of the boss, thereby improving the accuracy of the user's manual operation.

[0109] In summary, the air duct component provided in the embodiment of the present invention can effectively solve the problem of high noise when the cabinet air conditioner is discharging air from only the upper or lower side through the above configuration.

[0110] like Figure 5 As shown, the second aspect of the embodiment of the present invention further provides an air duct assembly, which includes a centrifugal fan 8 and the air duct component provided by the first aspect of the embodiment of the present invention, wherein the centrifugal fan 8 is arranged in the fan air duct 2 of the air duct component;

[0111] The axial air inlet side of the centrifugal fan 8 is connected to the axial air inlet side of the fan air duct 2, and the two radial air outlet sides of the centrifugal fan 8 are connected to the bottom of the upper air duct 1 and the top of the lower air duct 3 respectively.

[0112] Further, such as Figure 6-Figure 8 As shown, the third aspect of the embodiment of the present invention further provides a cabinet air conditioner, which includes a housing 9 and the air duct assembly provided by the second aspect of the embodiment of the present invention;

[0113] The casing 9 is provided with an upper air outlet 91 at the top, a lower air outlet 92 at the bottom, and an air duct assembly is provided inside. The upper air duct outlet 11 at the top of the air duct assembly is connected to the upper air outlet 91, and the lower air duct outlet 31 at the bottom of the air duct assembly is connected to the lower air outlet 92. A fuselage shell channel 100 is defined between the air duct assembly and the casing 9.

[0114] In some embodiments, Figure 6-Figure 8 As shown, the top of the housing 9 is also provided with an upper air inlet 93, and the bottom of the housing 9 is also provided with a lower air inlet 94;

[0115] The upper air inlet 93 and the lower air inlet 94 are both connected to the fuselage shell channel 100 .

[0116] When the air conditioner is running, the air outside the air conditioner can enter the fuselage shell channel 100 through the upper air inlet 93 and the lower air inlet 94, and be sucked into the centrifugal fan after heat exchange in the heat exchanger.

[0117] Furthermore, the fourth aspect of the embodiment of the present invention further provides an air outlet control method for a cabinet air conditioner, and the method is applied to the cabinet air conditioner provided by the third aspect of the embodiment of the present invention;

[0118] Specifically, the air conditioner has a simultaneous upper and lower air outlet mode in which air is discharged from the upper and lower air outlets at the same time, a single lower air outlet mode in which air is inletted from the upper air outlet and air is discharged from the lower air outlet, and a single upper air outlet mode in which air is inletted from the lower air outlet and air is discharged from the upper air outlet;

[0119] Control methods include:

[0120] If the air conditioner performs the upper and lower air outlet mode, the upper flow path control mechanism 1 is made to close the upper return air outlet, and the upper flow path control mechanism 2 is made to be in the first upper control position, and the lower flow path control mechanism 2 is made to close the lower return air outlet, and the lower flow path control mechanism 2 is made to be in the first lower control position;

[0121] If the air conditioner performs the single down-air outlet mode, the upper flow path control mechanism 1 opens the upper return air outlet, the upper flow path control mechanism 2 is in the first upper control position, the lower flow path control mechanism 1 closes the lower return air outlet, and the lower flow path control mechanism 2 is in the second lower control position;

[0122] If the air conditioner executes the single upper air outlet mode, the upper flow path control mechanism 1 closes the upper return air outlet, and the upper flow path control mechanism 2 is in the second upper control position, and the lower flow path control mechanism 1 opens the lower return air outlet, and the lower flow path control mechanism 2 is in the first lower control position.

[0123] Since the above analysis shows the specific air flow paths of the air conditioner when executing different air outlet modes, the air flow paths of the air conditioner in different air outlet modes will not be described in detail.

[0124] It should be specifically explained that when the above air conditioner is operating in the single up or single down air outlet mode, it is necessary to control the increase in the speed of the centrifugal fan.

[0125] Specifically, since the noise reduction device in the air duct {i.e., the above-mentioned upper flow path control mechanism 25 and the lower flow path control mechanism 27} will have a slight effect on the air outlet volume, when the noise reduction device is turned on, the speed of the air conditioner indoor unit is automatically controlled, and different speed compensations are performed for different windshields to increase the speed of the indoor fan to ensure that the air volume of the air conditioner is not attenuated, thereby ensuring sufficient cooling capacity and the temperature drop rate.

[0126] Specifically, take the example of turning on the single down air outlet mode in the air conditioner in the heating mode. Figure 8 As shown, at this time, the noise reduction device in the upper air duct remains closed {that is, the upper flow path control mechanism 2 5 is in the first upper control position at this time}, ensuring that the air intake is not affected, and the noise reduction devices on both sides of the lower air duct {that is, the above-mentioned lower flow path control mechanism 2 7 is in the second lower control position} are opened, and the speed of the synchronous internal fan {that is, the above-mentioned centrifugal fan} is increased, thereby increasing the air outlet 92 of the air conditioner to ensure that the air conditioning comfort meets user needs.

[0127] In some embodiments, the operating modes of the air conditioner include a cooling mode and a heating mode;

[0128] The control method also includes:

[0129] In cooling mode, the indoor ambient temperature is obtained. If the indoor ambient temperature is higher than the first preset temperature, the upper and lower air outlets are used simultaneously. If the indoor ambient temperature is lower than or equal to the first preset temperature, the upper and lower air outlets are used alone. Preferably, the first preset temperature can be 28°C.

[0130] In heating mode, the indoor ambient temperature is obtained. If the indoor ambient temperature is lower than the second preset temperature, the upper and lower air outlets are simultaneously performed. If the indoor ambient temperature is greater than or equal to the second preset temperature, the lower air outlet is performed alone. Preferably, the second preset temperature can be 22°C.

[0131] A fifth aspect of the embodiments of the present invention further provides an air duct component, the air duct component comprising an air duct housing and a flow path control body;

[0132] The interior of the air duct housing forms an air duct, and an opening is provided on the wall of the air duct housing to connect the air duct with the outside of the air duct;

[0133] The flow path control body is rotatably arranged at the opening;

[0134] The flow path control body has a first wall surface facing the inside of the air duct, a second wall surface facing the outside of the air duct, and a third wall surface connected between the first wall surface and the second wall surface for sealing with the edge of the opening;

[0135] The flow path control body can be controlled to rotate according to the flow direction of the fluid inside the air duct;

[0136] The flow path control body has a first working position and a second working position;

[0137] When the flow path control body is controlled to rotate to the first working position toward the inside of the air duct, the first wall surface forms a gradually contracting air duct section on the air duct portion where it is located;

[0138] When the flow path control body is controlled to rotate to the second working position toward the outside of the air duct, the first wall surface is connected with the inner wall surface of the air duct housing wall to form a smooth air duct wall surface, and the third wall surface is turned out of the air duct through the opening;

[0139] When the flow path control body rotates between the first working position and the second working position, the third wall surface always maintains a sealing fit with the edge of the opening.

[0140] By arranging a flow path control body on the wall of the air duct shell, the flow path control body can be controlled to switch between the corresponding first working position and the second working position when the flow direction rotation angle of the fluid inside the air duct changes, thereby avoiding noise and vibration problems caused by the fluid inside the air duct when the flow direction rotation angle of the fluid changes.

[0141] In some embodiments, the air duct inside the air duct housing can be controlled to form a reversible air supply duct;

[0142] The air duct component includes an upper air duct opening and a lower air duct opening, and the reversible air supply duct includes a single lower air supply duct with air inlet at the upper air duct opening and air outlet at the lower air duct opening, and a single upper air supply duct with air inlet at the lower air duct opening and air outlet at the upper air duct opening.

[0143] It should be noted that the specific structure of the flow path control body provided in the fifth aspect of this embodiment can adopt the upper flow path control mechanism 2 or the lower flow path control mechanism 2 in the air duct component provided in the first aspect of the embodiment. In addition, the flow path control body provided in the fifth aspect of this embodiment can also be provided with two or more. At the same time, when the air duct component provided in the fifth aspect of this embodiment forms a specific reversible air supply air duct structure, it can also adopt the specific structure of the air duct component provided in the first aspect of the embodiment. The specific composition structure of the air duct component and the flow path switching structure {i.e., the upper flow path control mechanism 1 and the lower flow path control mechanism 1 provided in the first aspect of the embodiment} are not described in detail here.

[0144] Furthermore, the sixth aspect of the present embodiment further provides a cabinet air conditioner, which includes the air duct component provided in the fifth aspect of the embodiment, the air duct component is arranged inside the air conditioner and defines a body shell channel between the air conditioner casing and the air conditioner casing;

[0145] An upper air vent is provided on the top of the air conditioner casing, and a lower air vent is provided on the bottom of the air conditioner casing. The upper air vent of the air duct component is connected to the upper air vent, and the lower air vent is connected to the lower air vent.

[0146] The interior of the air duct component can be controlled to form a single lower air supply duct with the air inlet side connected to the fuselage shell channel and the upper air duct opening, and the air outlet side connected to the lower air duct opening. The interior of the air duct component can also be controlled to form a single upper air supply duct with the air inlet side connected to the fuselage shell channel and the lower air duct opening, and the air outlet side connected to the upper air duct opening.

[0147] It should be noted that the cabinet air conditioner provided in the sixth aspect of this embodiment can adopt the same structure as the cabinet air conditioner provided in the third aspect of this embodiment.

[0148] Of course, in some alternative implementations, cabinet air conditioners with other structural forms may also be used, as long as the reversible air supply effect of the cabinet air conditioner can be achieved.

[0149] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the embodiments disclosed herein. This application is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary technical means in the art that are not disclosed in the present invention. The description and examples are to be regarded as exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0150] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. An air duct component, applied to a cabinet air conditioner, characterized in that: The air duct component comprises: An upper air duct (1), a fan air duct (2) and a lower air duct (3) are arranged from top to bottom, the upper air duct is formed with an upper air duct opening (11) at the top and is connected to the fan air duct (2) at the bottom, an upper return air duct (12) is provided on the air duct wall of the upper air duct (1), a lower air duct opening (31) is formed at the bottom of the lower air duct (3) and is connected to the fan air duct (2) at the top, and a lower return air duct (32) is provided on the air duct wall of the lower air duct (3); An upper flow path control mechanism, the upper flow path control mechanism comprising an upper flow path control mechanism 1 (4) and an upper flow path control mechanism 2 (5), the upper flow path control mechanism 1 (4) being arranged at the position of the upper return air outlet (12) and being used to open or close the upper return air outlet (12), the upper flow path control mechanism 1 (4) shuts off the connection between the upper air duct (1) and the fan air duct (2) when opening the upper return air outlet (12), and connects the upper air duct (1) and the fan air duct (2) when closing the upper return air outlet (12), the upper flow path control mechanism 2 (5) being arranged at the upper air duct On the duct wall, the upper flow path control mechanism 2 (5) has a first upper control position and a second upper control position. If the upper flow path control mechanism 2 (5) is in the first upper control position, at least part of the upper flow path control mechanism 2 (5) constitutes the duct surface of the upper duct (1). If the upper flow path control mechanism 2 is in the second upper control position, at least part of the upper flow path control mechanism 2 protrudes from the duct surface of the upper duct (1), so as to define at least part of the upper duct (1) as an upper tapered duct section which is tapered from the fan duct (2) side to the upper duct opening (11) side. A downflow path control mechanism, the downflow path control mechanism comprising a downflow path control mechanism 1 (6) and a downflow path control mechanism 2 (7), the downflow path control mechanism 1 (6) being arranged at the position of the downflow return air port (32) and being used to open or close the downflow return air port (32), the downflow path control mechanism 1 (6) shuts off the connection between the downflow duct (3) and the fan duct (2) when opening the downflow return air port (32), and connects the downflow duct (3) and the fan duct (2) when closing the downflow return air port (32), the downflow path control mechanism 2 (7) being arranged on the wall of the downflow duct The second downflow path control mechanism (7) has a first downflow path control position and a second downflow path control position. If the second downflow path control mechanism (7) is in the first downflow path control position, at least a portion of the second downflow path control mechanism (7) constitutes the air duct surface of the downflow duct (3). If the second downflow path control mechanism (7) is in the second downflow path control position, at least a portion of the second downflow path control mechanism (7) protrudes from the air duct surface of the downflow duct (3), so as to define at least a portion of the downflow duct (3) as a downflow duct section that is in a gradually contracting form from one side of the fan air duct (2) to one side of the downflow duct opening (31); An upper channel opening is provided on the air duct wall of the upper air duct (1), the upper flow path control mechanism 2 (5) comprises an upper movable part movably arranged at the upper channel opening, a lower channel opening is provided on the air duct wall of the lower air duct (3), the lower flow path control mechanism 2 (7) comprises a lower movable part movably arranged at the lower channel opening; the upper channel opening is provided between the upper return air opening (12) and the upper air duct opening (11), and the lower channel opening is provided between the lower return air opening (32) and the lower air duct opening (31); The upper movable member comprises an upper partition (51) and an upper boss (52); the upper partition (51) is fixed at the position of the upper channel opening and an upper partition hole is formed on the upper partition (51); the upper boss (52) is rotatably arranged at the position of the upper partition hole and has an upper boss surface (521) facing the inner side of the upper air duct (1); the upper boss (52) has a first upper control position and a second upper control position for sealing the upper partition hole when rotating; if the upper boss (52) is at the first upper control position, the upper boss surface (521) of the upper boss (52) constitutes the air duct surface of the upper air duct; if the upper boss (52) is at the second upper control position, the upper boss surface (521) of the upper boss (52) protrudes from the air duct surface of the upper air duct (1); The lower movable part includes a lower partition and a lower boss, the lower partition is fixed at the position of the lower channel opening and a lower partition hole is opened on the lower partition, the lower boss is rotatably set at the position of the lower partition hole and the lower boss has a lower boss surface facing the inner side of the lower air duct, and the lower boss has the first lower control position and the second lower control position for sealing the lower partition hole when rotating, if the lower boss is in the first lower control position, the lower boss surface of the lower boss constitutes the air duct surface of the lower air duct, and if the lower boss is in the second lower control position, the lower boss surface of the lower boss protrudes from the air duct surface of the lower air duct.

2. The air duct component according to claim 1, characterized in that: The upper flow path control mechanism 2 (5) is symmetrically arranged in two groups. When the two groups of the upper flow path control mechanism 2 (5) are both protruding from the air duct surface of the upper air duct (1), the upper tapered air duct section which is tapered from one side of the fan air duct (2) to the side of the upper air duct opening (11) is defined between the two groups of the upper flow path control mechanism 2 (5); The second downflow path control mechanism (7) is symmetrically arranged in two groups. When the two groups of the second downflow path control mechanism (7) are both protruding from the air duct surface of the downflow duct (3), the two groups of the second downflow path control mechanism (7) define a lower tapered air duct section which is tapered from one side of the fan air duct (2) to the side of the downflow duct opening (31).

3. The air duct component according to claim 2, characterized in that: One of the two groups of upper flow path control mechanisms (5) is arranged on the same side as the upper return air outlet (12); One of the two groups of lower flow path control mechanisms (7) is arranged on the same side as the lower return air outlet (32).

4. The air duct component according to any one of claims 1 to 3, characterized in that: The upper movable member has the first upper control position and the second upper control position for sealing the upper channel opening when the upper movable member is movable. If the upper movable member is in the first upper control position, at least part of the upper movable member constitutes the air duct surface of the upper air duct. If the upper movable member is in the second upper control position, at least part of the upper movable member protrudes from the air duct surface of the upper air duct. The lower movable member has the first lower control position and the second lower control position for sealing the lower channel opening when moving. If the lower movable member is in the first lower control position, at least part of the lower movable member constitutes the air duct surface of the lower air duct. If the lower movable member is in the second lower control position, at least part of the lower movable member protrudes from the air duct surface of the lower air duct.

5. The air duct component according to claim 1, characterized in that: The upper movable member and the lower movable member are constructed in the same structure.

6. The air duct component according to claim 5, characterized in that: The upper boss (52) comprises an upper boss bottom portion close to the bottom portion of the upper channel opening and an upper boss top portion close to the top portion of the upper channel opening, the upper boss (52) is arranged in a tapered shape from one side of the upper boss top portion to one side of the upper boss bottom portion, and the upper boss bottom portion is rotatably arranged at the bottom portion of the upper channel opening; The lower boss includes a lower boss bottom close to the bottom of the lower channel opening and a lower boss top close to the top of the lower channel opening. The lower boss is gradually expanded from one side of the lower boss top to one side of the lower boss bottom, and the upper boss top is rotatably arranged on the top of the lower channel.

7. The air duct component according to claim 5, characterized in that: The upper movable member further comprises an upper limit plate (53), wherein the upper limit plate (53) is fixedly arranged on a side of the upper boss (52) away from the upper boss surface (521), wherein when the upper boss (52) moves to a second upper control position where the upper boss surface (521) protrudes from the upper air duct surface, the upper limit plate (53) abuts against the outer wall of the upper air duct (1); The lower movable part also includes a lower limit plate, which is fixedly arranged on a side of the lower boss away from the lower boss surface. When the lower boss moves to a second lower control position where the lower boss surface protrudes from the lower air duct surface, the lower limit plate abuts against the outer wall of the lower air duct.

8. An air duct assembly, characterized in that: Comprising a centrifugal fan (8) and an air duct component according to any one of claims 1 to 7, wherein the centrifugal fan (8) is arranged in a fan air duct (2) of the air duct component; The axial air inlet side of the centrifugal fan (8) is connected to the axial air inlet side of the fan air duct (2), and the two radial air outlet sides of the centrifugal fan (8) are respectively connected to the bottom of the upper air duct (1) and the top of the lower air duct (3).

9. A cabinet air conditioner, characterized in that: It comprises a housing (9) and the air duct assembly according to claim 8; The casing (9) is provided with an upper air outlet (91) at the top and a lower air outlet (92) at the bottom, and the air duct assembly is provided inside; the upper air duct outlet (11) at the top of the air duct assembly is connected to the upper air outlet (91), and the lower air duct outlet (31) at the bottom of the air duct assembly is connected to the lower air outlet (92); a body shell channel (100) is defined between the air duct assembly and the casing (9).

10. The cabinet air conditioner according to claim 9, characterized in that: The top of the housing (9) is also provided with an upper air inlet (93), and the bottom of the housing (9) is also provided with a lower air inlet (94); The upper air inlet (93) and the lower air inlet (94) are both connected to the fuselage shell channel (100).

11. A method for controlling air flow of a cabinet air conditioner, characterized in that: The control method is applied to the cabinet air conditioner according to claim 9 or 10; The air conditioner has a simultaneous upper and lower air outlet mode in which air is discharged from the upper and lower air outlets at the same time, a single lower air outlet mode in which air is inletted from the upper air outlet and air is discharged from the lower air outlet, and a single upper air outlet mode in which air is inletted from the lower air outlet and air is discharged from the upper air outlet; The control method comprises: If the air conditioner performs the upper and lower air outlet mode, the upper flow path control mechanism 1 is made to close the upper return air outlet, and the upper flow path control mechanism 2 is made to be in the first upper control position, and the lower flow path control mechanism 2 is made to close the lower return air outlet, and the lower flow path control mechanism 2 is made to be in the first lower control position; If the air conditioner performs the single down-air outlet mode, the upper flow path control mechanism 1 opens the upper return air outlet, the upper flow path control mechanism 2 is in the first upper control position, the lower flow path control mechanism 1 closes the lower return air outlet, and the lower flow path control mechanism 2 is in the second lower control position; If the air conditioner executes the single upper air outlet mode, the upper flow path control mechanism 1 closes the upper return air outlet, and the upper flow path control mechanism 2 is in the second upper control position, and the lower flow path control mechanism 1 opens the lower return air outlet, and the lower flow path control mechanism 2 is in the first lower control position.

12. The air outlet control method according to claim 11, characterized in that: The control method further comprises: If the air conditioner performs the single upper air outlet mode or the single lower air outlet mode, the rotation speed of the centrifugal fan is controlled to increase.

13. The air outlet control method according to claim 11, characterized in that: The operation modes of the air conditioner include cooling mode and heating mode; The control method further comprises: In cooling mode, the indoor ambient temperature is obtained. If the indoor ambient temperature is higher than the first preset temperature, the upper and lower air outlet mode is executed simultaneously. If the indoor ambient temperature is lower than or equal to the first preset temperature, the upper air outlet mode is executed alone. In the heating mode, the indoor ambient temperature is obtained. If the indoor ambient temperature is lower than the second preset temperature, the upper and lower air outlet mode is executed. If the indoor ambient temperature is greater than or equal to the second preset temperature, the lower air outlet mode is executed.

14. An air duct component, characterized in that: The air duct component includes an air duct housing and a flow path control body; The interior of the air duct housing forms an air duct, and a housing wall of the air duct housing is provided with an opening that connects the interior of the air duct with the exterior of the air duct; The flow path control body is rotatably arranged at the opening; The flow path control body has a first wall surface facing the inside of the air duct, a second wall surface facing the outside of the air duct, and a third wall surface connected between the first wall surface and the second wall surface for sealing with the edge of the opening; The flow path control body can be controlled to rotate according to the flow direction of the fluid inside the air duct; The flow path control body has a first working position and a second working position when rotating; When the flow path control body is controlled to rotate toward the inside of the air duct to a first working position, the first wall surface forms a gradually contracting air duct section in the air duct portion where the first wall surface is located; When the flow path control body is controlled to rotate to the second working position toward the outside of the air duct, the first wall surface is connected with the inner wall surface of the air duct housing to form a smooth air duct wall surface, and the third wall surface is turned out of the air duct through the opening; When the flow path control body rotates between the first working position and the second working position, the third wall surface always keeps sealingly matched with the edge of the opening; The flow path control body includes a movable member movably arranged at the opening; The movable part includes a partition and a boss, the partition is fixed at the opening position and a partition hole is opened on the partition, the boss is rotatably arranged at the partition hole position and the boss has a boss surface facing the inner side of the air duct, and the boss has the first working position and the second working position for sealing the partition hole when rotating, if the boss is in the second working position, the boss surface of the boss constitutes the air duct wall surface of the air duct, and if the boss is in the first working position, the boss surface of the boss protrudes from the air duct surface of the air duct.

15. The air duct component according to claim 14, characterized in that: The air duct inside the air duct housing can be controlled to form a reversible air supply duct; The air duct component includes an upper air duct opening and a lower air duct opening, and the reversible air supply duct includes a single lower air supply duct with air entering through the upper air duct opening and air exiting through the lower air duct opening, and a single upper air supply duct with air entering through the lower air duct opening and air exiting through the upper air duct opening.

16. A cabinet air conditioner, characterized in that: The air duct component comprises the air duct component according to claim 14 or 15, wherein the air duct component is arranged inside the air conditioner and defines a body shell channel between the casing of the air conditioner; The top of the air conditioner housing is provided with an upper air outlet, the bottom of the air conditioner housing is provided with a lower air outlet, the upper air outlet of the air duct component is connected to the upper air outlet, and the lower air outlet is connected to the lower air outlet; The interior of the air duct component can be controlled to form a single downward air supply duct with the air inlet side connected to the fuselage shell channel and the upper air duct opening, and the air outlet side connected to the lower air duct opening. The interior of the air duct component can also be controlled to form a single upward air supply duct with the air inlet side connected to the fuselage shell channel and the lower air duct opening, and the air outlet side connected to the upper air duct opening.

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